Means for heating briquets and the like.



P. HEIN.

MEANS FOR HEATING BRIQUETS AND THE LIKE.

APPLICATION FILED JULY 21, 1911.

1,039,533. Patented Sept. 24,1912.

P. HEIN.

MEANS FOR HEATING BRIQUETS AND THE LIKE.

APPLICATION FILED JULY 21, 1911.

1,039,533, Patented Sept. 24, 1912.

6 SHEETS'SHEET 2.

Q1721 2.9 8 e a 2 P. HEIN. MEANS FOR HEATING BRIQUETS AND THE LIKE.

APPLICATION FILED JULY 21. 1911.

Patented Sept. 24, 1912.

6 SHEETSSHEET 8.

P. HEIN.

MEANS EOE HEATING BRIQUETS AND THE LIKE.

APPLICATION FILED JULY 21, 1911.

Patented Sept. 24, 1912.

' s sHEETssHEET 4.

P. HEIN.

MEANS FOR HEATING BRIQUETS AND THE LIKE.

APPLICATION FILED JULIZI, 1911.

Patented Sept. 24, 1912.

s SHEETSSHBET-5.

P. HEIN. MEANS FOR HEATING BRIQUETS AND THE LIKE.

APPLICATION FILED JULY 21, 1911. 1,039,533 Patented Sept. 24, 1912.

6 SHEBTS-SHBET 6v m5552526? 25552 a r V 1 :2

wll'massas rj uwa f W 0444/ 2 M a UNITE srATEs PATENT Enron.

PAUL HEIN, OF ESSEN-RUETTENSQHEID, GERTMANY, ASSIGNOR T0 DIAMANTBRIKETT- WERKE, G. M. B. H., OF BERLIN, GER-MANY.

MEANS FOR HEATING BRIQUETS AND THE LIKE.

Specification of Letters Patent.

Patented Sept. 24, 1912.

To all whom it may concern:

Be it known that I, PAUL HEIN, a subject of the King of Prussia,residing at Essen- Ruettenscheid, in the Kingdom of Prussia, GermanEmpire, have invented certain new and useful Improvements in Means forHeating Briqucts and the Like, of which the following is aspecification.

The present invention has for its object an apparatus for hardening,coking, roasting or drying materials of any kind, such as briquets,potatoes or the like. The apparatus is, however, mainly intended forbriquets of the kind that have been compressed, with the addition of abinding medium preferably soluble in water, from small coke or coal andwhich require treatment to cause the coking of the binding medium sothat the latter may become impervious to water. The apparatus can alsobe utilized in an equally advantageous manner for drying and treatingany other kinds of material.

The object of my invention is to subject the material to be coked orroasted on all sides to the direct action of hot roasting gasesgradually and as completely as possible.

My new apparatus insures a reliable continuous and industriallyefficient operation because of its peculiar construction and operation.

One form of my apparatus for coking briquets or the like is illustrated,by way of example, in the accompanying drawings in w ich:

Figures 1 and 1 represent transverse sections of the drums intended forthe reception of the material to be treated which drums are arranged ina closed chamber. Figs. 2 and 2 represent vertical sections through theroasting or drying oven on the line AA in Figs. 1 and 1*. Fig. 3 showsthe roasting drums in section on the plane of the axes of the drums.Fig. 4 is a cross section'of the roasting drums on the line DD in Fig.3. Figs. 5, 6 and 7 illustrate a closing slide for the drums and itsoperating gear.

Broadly, the method of roasting the ma terial in my apparatus is asfollows: The molded briquets are continuously rotated and turned over ina number of drums arranged in superposition, that is in a vertical tieror series which drums are heated by means of hot air, furnace gases orthe like.

The gases pass through the perforated walls of the drums and flow overthe briquets. lNith this object in view, my roasting apparatus consistsin a closed casing a composed of some suitable material, such asbrickwork, sheet metal or the like, in which the drums 0 are rotatablymounted on driving shafts Z), three such drums being shown. The drums 0have a perforated periphery and radially directed walls (Z (Fig. I)arranged at an interval one from the other so that they form scoop-likecompartments or chambers for the reception of the briquets to betreated. In order to carry out the roasting process wit-h as fewroasting drums as possible or, in the alternative, to utilize theroasting drums to the maximum extent guide walls 6 which adaptthemselves to the outer edges of the partitions (Z extend over a portionof the periphery of the drums 0. In order to afford a free passage forthe ascending hot air these guide walls 0 are also perforated; theyprevent the briquets from falling prematurely out of the severalcompartments of the drums so that they can be conveyed through almost acomplete revolution of the drums. The drums can be made of anyconvenient length and they can be divided into two or more compartments.The walls of the drums can also be supported by supporting arms mountedon the shaft 6. In order to prevent deformation of the drums by the heatespecially when they are of exceptionally large size suitable supportingmembers, such as Wheels, rollers or the like can be provided. Anysuitable number of these supporting members can be utilized and they arepreferably arranged outside and underneath the drums. In theconstruction here illustrated rotatably mounted disks 2f have beenutilized for this'purpose (Figs. 3 and 4) these disks pass throughopenings in the guide walls e and bear against the drums. In order toprovide a good bearing for the supporting isks t the drums are furnishedwith special bearing rings uwhich extend over the walls 0!. Thesebearing rings rest on rings which are supported by the supporting anusof the drums. As the drums c are provided with guide walls 6 on theirlower side a separate inlet and outlet for the material can be arrangedfor each drum and all the inlets and outlets can be located on the sameside of the apparatus, and this is a very Important 110 feature of myinvention. In the drawing (Figs. 1 and 1 the inlets to the drums or theinlet chutes have been marked f f F, while the outlet chutes have beenmarked In accordance with my invention the material to be roasted or thelike is conducted in a continuous path through the apparatus from thehighest drum to the next lower drum and so forth until finally it leavesthe apparatus completely roasted. This result is attained in anexceedingly simple manner by suitably connecting tie outlet of each drumwith the inlet of the next lower drum.

Experience has demonstrated that notwithstanding the greatest care thebriquets conducted through a kiln become easily kindled during theroasting operation. This is not only a frequent cause of interruption inthe operation of the apparatus, but the heat resulting from the burningof the briquets enda ngers the entire apparatus.

A further object of my invention therefore is to reduce this danger tothe minimum, or eliminate it altogether. This result is ob tained in asimple manner.

According to my invention the inlets and outlets for the material arelocatedon the same side of the apparatus and are connected by means of adischarge chute common to all the drums, in such a manner that if a fireshould occur, the material contained in all the drums can simultaneouslybe discharged from the apparatus in a single operation. This chute whichis carried to a suitable place for depositing the briquets is marked itin the drawing (Figs. 1 and I All the inlets and outlets of the severaldrums 0 open into this chute h with the exception of the inlet of thetopmost drum and the outlet of the lowest drum. This discharge chute itcomprises a-reversing member for each drum preferably a pivoted flap h(Figs. 1 and 1 in such a manner that in the reverse position of thisflap h the briquets passing from the chute f ff into the chute it fallonto this flap by which they are conducted into the chutes g, g g of thenext lower drum. In this manner the continuous circulation of thematerial under treatment through all the drums is insured. By swingingthe flaps it into the positions illustrated in broken lines they arecaused to close the inlet chutes of the drums. The briquets passing fromthe drums into the chute h are then unable to enter the next drum'butare conducted directly through the chute h and out of the apparatus. Itis advantageous to make this dlscharge chute h which connects with theinlet and outlet chutes for the several drums of the same width as thatof these inlet and outlet chutes. In order to bring into as small acompass as possible the briquets which are introduced into the dischargechute from the outlet chute of the drum in a wide line, a number ofguide or battle plates 71 may be provided in the delivery chute in amore or less inclined position. The flaps it can be operated by hand orin any other convenient manner. To this end some convenient means may beprovided outside the chute so that if desired all the flaps can bereversed together from a single station.

Any equivalent means, such as slides or the like can of course beemployed instead of the flaps referred to above.

The material to be roasted is suppliedto a receptacle 7a of suitablesize which communicates at its lower end with the inlet chute f of thetop drum 0. The material is supplied at a suitable rate from thereservoir through the inlet to the drum 0, any material supplied to thereservoir is in excess of this rate being stored therein. An overflowpassage Z serves for discharging any material supplied in excess storedin the reservoir, the said excess being thus returned to the main ororiginal storage place. This overflow passage may be of any con venientconstruction and communicate with any appropriate part of the reservoir70 or this passage can be replaced by a chute or some other deviceserving the same purpose.

lt is not only desirable but absolutely necessary to provide means forregulating the supply of the material to be treated from the reservoiris through the inlet chute j to the drum 0 and also from one drum toanother. To this end a cut-oft slide a is provided between the drum 0and the wall of the oven and is secured on each side of the drum bymeans of an arm it. These arms are suitably mounted on the shaft of theroasting drums in such a manner that the cut-0E slide n is able to moveover a portion of the periphery of the drum. The arrangement is suchthat during the operation of the apparatus the slide presents noimpediment to the passage of the material to and from the drums. Themost convenient position for arranging the slides is be tween the inletand the outlet chutes. ltn this position the slide can at once hebrought in front of the inlet or in front of the outlet whereby thesupply of the material or its discharge can be wholly or partially cutoft or regulated in any convenient manner, by operating the arms a andthereby the slides n. In the apparatus as shown the slide 12. isadjusted upward and downward by means of a handle 2 fitted to a shaft onwhich a bevel gear wheel is mounted. Another bevel gear p meshestherewith, the hub of which is formed as a nut, and which is rotatablymounted in a suitably formed bearing (Fig. 7). A spindle 0 is guided inthis nut-gear wheel; this spindle is threaded and, by means of a crosshead, it is connected with a crank rod 0. Preferably this connecting rodis jointed directly to the slide. rection or the other, by theintermediary of the bevel gears 79 and of the spindle 0 the slide n isbrought either into its closed or its opened position. With thisarrangement the slide will be securely held in any posi tion that hasbeen given to it without the need of any locking means.

When thebriquets have been supplied to the receptacle 7: they passthrough the inlet 7' into the compartments of the top drum 0. On theirway through the drums the briquets are subjected continuously and on allsides to the direct action of the hot gases. The hot air or gases aresupplied at the bottom of the apparatus throughv the inlet a (Fig. 1)and they pass u wardly through the perforated walls of t e drums a andflow over the briquets. At the top of the apparatus the hot air or gasesescape through the flue m (Fig. 1). From the last drum the briquets passdirectly into the hopper-shaped receptacle 8, thence into the air lock 1and finally out of the apparatus. In case the briquets should becomeoverheated and take fire in the air lock, another dis charge passage 8is provided; this discharge is rendered operative when desired by meansof the actuating member s.

The coal dust "formed during the passage of the briquets through theapparatus is collected in the receptacle q arranged below the inlet aand provided with a discharge pipe 9.

In order to be hunt to ascertain the condition of the charge containedin the apparatus, a door '0' is provided in the receptacle 7c, theposition of this door being shown on an indicator Y by means of an indexy operated through a lever to and traction member on. The free end oflever to is provided with a counter-weight w.

lVhat I claim as my invention is:

1. Apparatus for drying, roasting or coking briquets, and the like, comrising a plurality of superposed rotary rums having perforated walls andperipherical compartments adapted to receive the materialto be treated,and a common chute, both for conveying the material from a higher drumto the next lower drum and for discharging the material from any and allof the drums at will.

2. Apparatus for drying, roasting and coking briquets and the like,comprising a plurality of superposed rotary drums having perforatedwalls and peripherical compartments, adapted to receive the material tobe treated, a chute both for conveying the material from a higher drumto the next lower drum and for dischar 'ng the material from any and allof the, rums at will,

I and traps for establishing communication By rotating the handle a inone dia lower drum and for discharging the mabetween a drum and eitherthe said chute or withthe inlet of the nextlower drum.

3. Apparatus for drying, roasting and coking briquets and the like,comprising a plurality-of superposed rotary drums having perforatedwalls and peripherical compartments adapted to recelve the material tobe treated, a chute both for conveying the material from a higher drumto the next terial from any and all of. the drums at will, traps forestablishing communication between a drum and either the said chute orthe inlet of the next drum, and guide plates located in said chute belowthe said traps.

4'. Apparatus for drying, roasting and coking briquets and the like,comprising a plurality of superposed'rotary drums hav-' ing perforatedwalls and peripherical compartments adapted -to receive the material tobe treated, a guide wall extending over part of the periphery of eachdrum, and a single chute both for conveying the material from a higherdrum to the next lower drum and for discharging the material from anyand all of the drums at will.

5. Apparatus for drying, roasting and coking briquets. and the-like,comprisinga plurality of superposed rotary drums having perforated wallsand peripherical compartments adapted to receive the material to betreated. a single chute both for conveying the briquets from a higherdrum to the next lower -drum and for discharging the material from anyand all of the compartments at will, and rollers for supporting eachdrum.

6. Apparatus for drying, roast-ing and coking briquets and the like,comprising a plurality of superposed rotary drums having perforatedwalls and peripherical compartments adapted to receive the materialto betreated, a single chute both for conveyingthe material from a higherdrum to the next lower drum and for discharging the material from anyand all of the drums at will, and a 'cut-ofi slide in connection witheach drum.

7. Apparatus for drying, roasting and coking briquets and the like,comprising a plurality of superposed rotary drums having perforatedwalls, peripherical compartments adapted to receive the material to betreated, a chute both for conveying the material from ahigher drum tothe next lower drum and for discharging the material from any and all ofthe drums at will, and a supply receptacle connected with the top drum.

8. Apparatus for drying, roasting and coking briquets and the like,comprising a plurality of superposed rotary drums having perforatedwalls and peripherical compartments adapted to receive the material tobe treated, a chute both for conveying the material from a higher drumto the next lower drum and for discharging the material from any and allof the drums at will, a supply receptacle connected with the top drum,and an overflow passage in said receptacle.

9. Apparatus for drying, roasting and coking briquets and the like,comprising a plurality of superposed rotary drums having perforatedwalls and peripherical comparttnents adapted to receive the material tohe treated, a single chute both for conveying the material from a higherdrum to the next lower drum and for discharging the material from anyand all of the drums at will, a plurality ofdischarge passages at thebottom of said chute and means for rendering said passages alternatelyoperative.

10. Apparatus for drying, roasting and coking briquets and the like,comprising, a plurality of superposed rotary drums having perforatedwalls and peripheric'al compartments adapted to receive the material tobe treated, a chute both for conveying the material from a higher drumto the next noaaeaa lower dam and for discharging the ma terial from anyand all of the drums at will, and a hopper at the bottom of the aparatus for receiving and carrying all the ust particles, and adischarge pipe connected with said hopper.

11. Apparatus for drying, roasting and coking briquets and the likecomprising a plurality of superposed rotary drums hav ing perforatedwalls and peripherical compartments adapted to receive the material tobe treated, a chute both for conveying the material from a higher drumto the next lower drum and for discharging the material from any and allof the drums at will, a cut-off slide and an operating shaft therefor,an actuating shaft 'and gears on said. shafts in mesh with each other.

In testimony whereof I have afiixed my signature in presence of twowitnesses.

PAUL HEIN.

Witnesses WO DEMAR HAUPT ldlENRY HASPER.

